Microbiology Flashcards

1
Q

What is the classic presentation of CMV, and who does it affect?

A

Owl eye. Presents with eye issues, diarrhoea, back pain. Can cause opportunistic infections in HIV patients

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2
Q

What should be used to treat UTIs/e.coli in pregnant women?

A

Nitrofurantoin

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3
Q

What is the presentation of EBV and it’s colloquial name?

A
  • ‘mono’

- extreme fatigue, fever, sore throat, swollen lymph nodes, hepatosplenomegaly

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4
Q

What is the tx immediately for a non blanching purpura rash?

A

Benzylpenicillin.

cefotaxime in hospital

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5
Q

How do you differentiate between staphylococcus and streptococcus?

A

Catalase test

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6
Q

What is the apperance of neisseria meningitidis?

A

gram negative diplococci

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7
Q

What is the presentation of streptococcus pneumoniae?

A

gram positive diplococci

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8
Q

What colour are gram pos/neg on stains?

A

pos: purple, neg: pink

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9
Q

What bacteria are gram pos cocci clusters?

A

staph

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10
Q

What bacteria are gram pos cocci chains?

A

streptococcus

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11
Q

What identifies s.aureus?

A

coagulase

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12
Q

what differentiates beta and alpha streptococcus?

A

haemolysis on blood agar

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13
Q

What is a beta strep cocci

A

s.pyogenes

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14
Q

What is a alpha strep (and the test to differentiate them)

A
  • s. pneumoniae
  • s. viridans
  • optochin test
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15
Q

What is the macconkey agar?

A

differentiate lactose and non lactose fermenting gram neg

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16
Q

What colour are each result of the macConkey agar?

A
  • pink: fermenting

- white: non fermenting

17
Q

What test differentiates non fermenting gram neg?

A

oxidase test

18
Q

What are oxidase test positive bacteria?

A

pseudomonas

19
Q

What are oxidase neg gram neg?

A

salmonella, shigella, proteus

20
Q

What is a unique way that legionella is tested for?

A

urine sample

21
Q

What is blood agar used for?

A

culturing anaerobes

22
Q

What is charcoal agar used for?

A

campylobacter jejuni

23
Q

What is chocolate agar used for?

A

anaerobes

24
Q

What antibiotics inhibit cell wall synthesis

A
  • penicillins
  • carbapenems
  • glycopeptides: vancomycin
  • cephlasporin
25
Q

What antibiotics inhibit protein synthesis?

A
  • macrolides: clarithromycin, erythromycin
  • tetracyclin
  • aminoglycosides: gentamycin, streptomycin
26
Q

what antibiotics inhibit nucleic acid synthesis?

A

metrondazole, rifampicin, fluroquinines, ciprofloxin, trimethroprim, sulphonamides

27
Q

How is chlamydia treated?

A

azithromycin or doxycycline

28
Q

How is syphillis treated?

A

BenPen

29
Q

How is gonorrhoea treated?

A

ceftraxiome

30
Q

What is menignitis prophylaxis?

A

ciprofloxacin